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GM: Hydrogeologic model shows deep‑aquifer uncertainty; seawater intrusion will require major projects and time
Summary
Arroyo Seco GSA General Manager Curtis Weeks briefed the board on a hydrogeologic model update that found limited knowledge about a deep aquifer in the northern basin, uncertainty about recharge mechanisms, and ongoing seawater intrusion on the East Side that may require multi‑decade projects and substantial funding.
Curtis Weeks, the Arroyo Seco GSA general manager, delivered an oral status report summarizing recent advisory‑committee and implementation‑subcommittee work and an updated hydrogeologic model for the Salinas Valley basins.
Weeks said the model highlights uncertainty in a deeper northern aquifer where only two wells were identified; recharge pathways for that deep body of water are unclear because clay layers (aquitards) block direct surface recharge. He cautioned that limited data make it…
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